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25 November 2013 AGE-NC Project No. 13-2675 Page 3 of 5 collected at 20 feet bsg in B1 and B2 and at 15 feet and 20 bsg in B3 were analyzed for the following chemical constituents: • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA-method 8015-modified; and • Volatile organic compounds (VOCs) in accordance with EPA-method 8260B. EQUIPMENT DECONTAMINATION Prior to sample collection, Geoprobe soil sampling equipment was thoroughly rinsed with clean water after being washed with a solution of Alconox. Geoprobe rods were thoroughly cleaned prior to soil probe boring advancement. BORING ABANDONMENT Following soil sample collection, each boring was permanently sealed to prevent vertical migration of potential contaminants. Soil borings were abandoned by backfilling with portland cement from the total depth to surface grade. FINDINGS Light brown to dark brown, dry, silty fine sand was encountered at 5 feet bsg in borings 131 through B3 and light brown to dark gray, dry, fine sandy silt was encountered at 10 feet and 15 feet bsg in borings B1 through B3. Gray and reddish brown to brown, damp to moist, silty clay was encountered at 20 feet, 25 feet, and 30 feet bsg in borings B1 and 132; and dark gray, discolored, moist, silty clay was encountered at the same depths in B3. Strong hydrocarbon odors were observed in the soil samples collected between 10 feet and 30 feet bsg from boring B3. Utilizing the OVM, organic vapors were detected in soil samples collected from B1 and B2 at low concentrations ranging between 0.1 parts per million by volume (ppmv)and 2.8 ppmv and very high concentrations were detected in soil samples collected from B3 ranging between 1,420 ppmv(B1-30)and 4,238 ppmv(B1-20). Boring logs summarizing stratigraphy and OVM detections are presented in Appendix A. Advanced GeoEnvironmental,Inc.